Air Changes per Hour (ACH)
|1000 sqft||1500 sqft||2000 sqft||2500 sqft||3000 sqft||3500 sqft||4000 sqft||4500 sqft||5000 sqft|
|AWW-350||2.63 ACH||1.75 ACH||1.31 ACH||.95 ACH||.88 ACH||.75 ACH||.66 ACH||.58 ACH||.53 ACH|
Based on 8′ ceilings
Generally speaking, the more air changes per hour (ACH) you can provide, the more effective a HEPA filter can be.
1 ACH provides excellent air cleaning results (higher is recommended for people with sensitivities).
Remember: More HEPA is better than less, but some HEPA is better than nothing at all.